Piece Me Back Together

After Weirdmageddon, they thought everything was over and Bill was gone for good, but they were wrong. Every time Bill has possessed a being, he left behind traces of himself. Immediately upon his erasure in Stan's mind, all these traces came together and brought him back, but human and much weaker than before. With no way to get his demon form back, Bill had to adjust to being human and having very limited powers for the time being. The only positive aspect was that being human let him leave Gravity Falls, and he knew exactly where he wanted to be - terrorizing the Pines twins in California. Not everything goes as Bill planned, however, and he may end up getting more than he bargained for.

(This is on AO3 as well. It was actually there first.)
((I just really quickly slapped together the cover in, like, 2 minutes so that I could post this as soon as possible, so I apologize that it's bland and boring and just overall a terrible cover for this. I will make a better one when I can get around to it. I do not own the art used to make it.))